St. Mary's River State Park

**Location & Launch:** This boat ramp is located in Callaway, St. Mary's County, at the end of Camp Cosoma Road off Maryland Route 5 (between Leonardtown and Great Mills). The facility provides a modern boat launch onto Evitts Pond, part of the broader St. Mary's River system in a 2,643-acre state park.

**Rules & Restrictions:** Boaters are restricted to **electric motors only**—making this an ideal destination for kayakers and canoeists. The landings close at sunset except for loading/unloading boats, so plan your paddling during daylight hours. Do not block the ramps, parking areas, or bulkheads when launching or landing. A 7.5-mile trail circles the lake, offering shoreline access for fishing and scenic paddling opportunities.

**Amenities:** The lake area includes a modern comfort station, picnic tables, and a playground, making it suitable for family outings. The broader state park encompasses 480 acres of developed lake recreation and an additional 2,200-acre undeveloped hunting area, offering a mix of active recreation and natural shoreline exploration.

Overview
Visitors eligible for reservations at this location are limited to Active Duty, Reservists, Retired Military, Unremarried Widow, Veterans and Department of Defense employees. Learn more about eligible visitors and access to this military base recreation site.
A variety of recreational programs and facilities await you and your family at Naval Air Station Patuxent River, located just 55...

Overview
Visitors eligible for reservations at this location are limited to Active Duty, Reservists, Retired Military, Unremarried Widow, Veterans and Department of Defense employees. Learn more about eligible visitors and access to this military base recreation site.
A variety of recreational programs and facilities await you and your family at Naval Air Station Patuxent River, located just 55 miles south of Washington D.C. Situated at the confluence of the Patuxent River and Chesapeake Bay, this is an area rich in both American and Navy history and natural beauty. Part of the legacy of Southern Maryland may be found in the spacious, natural campsite areas aboard the installation. Hogs Point Campsites are nestled in the woods between the Chesapeake Bay and Patuxent River and are just a few walking steps for fishing and crabbing.
Recreation
Water lovers will find that NAS Patuxent River strectches across approximately 12 miles of shoreline offering locations to launch kayaks, stand up paddle boards, motor and sail boats, places for fishing and crabbing as well as areas for the beach lovers.   
Bicyclists will find a 10 mile paved loop within the installation as well as designated bike trails. 
MWR also has a Golf Course, Outdoor Pool, Marina, Theater, Community Recreation Office, Auto Hobby Shop and Fitness Center.
Facilities

Tent Only Nonelectric
Overnight

Natural Features
NAS Patuxent River Hogs Point Campground is located where the Chesapeake Bay meets the Patuxent River, offering the best views for sunrises. 

Nearby Attractions

Historic St. Mary's City 
Patuxent River Air Museum
Historic Sotterly 
St. Clement's Island
Point Lookout State Park
Solomon's Island
Navy Recreation Center Solomons 


Contact Info
This location is staffed. Please call (301) 342-3573 to speak with local staff.

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